Metal window sash construction



Nov. 3, 1931. G. G. CARMAN ET AL 1,830,504

METAL WINDOW SASH CONSTRUCTION Filed March ll. 1929.

IN! 'ENTORS QW 526 M Patented Nov. 3, 1931 UNITED STATES PATENT OFFICE GEORGE G. CA RMAN AND CLAUDE D. DYKEIVIA, F GRAND RAPIDS, MICHIGAN METAL WINDOW SASH CONSTRUCTION Application filed March 11, 1929. Serial No. 345,956.

This invention relates to metal Window sash construction of the type which insulates against heat losses.

. The main objects of this invention are to provide-means for converting a metal sash frame of standard construction into a storm sash; to provide an improved window of the spaced double glazed type in which the air space between the glazings is hermetically sealed; to provide an improved structure which can be quickly and economically applied to existing standard constructions of metal sashes; and, to provide a'structure which will eliiciently and effectually decrease the heat losses existing at present in the use of metal sashes, particularly of the easement window type. v

An illustrative embodiment of this invention is shown in the-accompanying drawings, in which:

Fig. 1 is a horizontal sectional view taken through a standard metal sash frame equipped with our improved invention showing the sash mounted in a metal window frame in the customary manner, the section being partially'taken on theline 1-1 of 2.

Fig. 2 is a fragmentary view in the elevation of the inner side of a sash frame showing the inner removable flange which holds the glazings in assembled relation.

Fig. 3 is an enlarged transverse sectional view of the improved gasket which acts as a spacer to hold the double glazings in spaced relation and effects a seal.

Fig. 4 is a View similar to Fig. 2 but showing a modification of the retaining means for holding the inner glazing in place.

At the present time there are several stand ard constructions of metal window sashes on the market and particularly with the casement type window where the sash swings out from the window frame it is impossible to mount storm sashes into the window frames. The tendency of modern construction is to have residences designed with generous window space and in high-class buildings metal window sashes and frames are ordinarily used. A great amount of attention has been 59 directed to the proper insulating of residences, not only of the side walls of the structure but also of the roof so as to conserve the heat by decreasing conduction losses. Efficient insulationof the modern dwelling has been pretty well worked out, with the exception of windows.

In the present invention we have extended this heat insulating idea to metal sash framed windows of standard construction so that an architect can specify any one of the well known metal sash frames on the market at present,and further specify the equipping of this metal sash frame with a second glazing so that a dead air space is formed between the two glazings.

In theconstruction shown in the drawings,

a rectangular metal sash frame 1 is shown provided with an inwardly extending flange 2 closely adjacent one side thereof against which abuts the outside marginal edges of a glazing 3. This glazing may be sealed into a the sash frame if desired by putty or cement 4 and is held by wire clips 5 until the cement sets. A removable spacer, in the form of a resilient rubber gasket 6 of rectangular cross 7 section, is placed within the sash frame 1 with its outer side bearing against the inner peripheral sides of said frame and with its opposite edges contacting, one against the glazing 3 and the other against an outer glazing 7, which in the disclosure shown in the drawings is of the leaded pane type.

The edges of the gasket 6, which contact against the glazings, are concave in cross section as shown at 8 and 9 so as to have a suction effect when pressed tightly against the glazings, thereby aiding in sealing the air space 10 between the glazings which space is preferably hermetically sealed.

The outer side of the sash frame 1 is provided with means for holding the outer glazing 7 tightly against the gasket 6 and comprise, in the form shown in Fig. 2, strips 11 secured to the frame 1 by screws 12 in such manner that the inwardly extending marginal portions of said strips overlap the marginal edge of the glazing 7, thus forming an outer flange 13 similar to the inner flange 2.

' Both of these flanges preferably extend inwardly substantially the same distance and the gasket 6 is of such thickness that when in position it extends inwardly the same distance as said inwardly extending flanges v so as to present a neat finished appearance.

In the embodiment shown in Fig. 4, the outer glazing 7 is held in place by a plurality of clips 14 secured by screws 15 to the frame 1. The clips 14 are provided with inwardly extending portions 16 which overlap the marginal edge of the glazing 7.

In the assembly of this construction, the inner glazing 3 is preferably cemented into the metal sash frame 1 against the inwardly extending flange 2, the wire clips 5 holding glazing-3 in position until the cement or putty hardens. The rubber gasket 6 is then placed around the inner periphery of the sash frame 1 with one edge thereof abutting against the glazing 3 and its outer side hearing against the inner periphery of the sash frame. The outer glazing 7 is then placed with its marginal edge against the opposite edge of the gasket 6 and either the strips 11 or the clips 14 secured in place so as to cause the outer glazing 7'to slightly compress the gasket 6, thereby forming a seal and thus creating an hermetically sealed air space between the two glazings.

Although but one specific embodiment of this invention and one modification thereof have been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the following claims.

We claim: 7

1. A metal sash frame having an inwardly for pressing the separable parts together and compressin the gasket in air-sealing relation with the g azings and with the sash frame between the glazm s.

In testimony w ereof we have hereunto set our hands at Grand Rapids, Michigan, this 5th day of March, 1929.

GEORGE G. CARMAN. CLAUDE D. DYKEMA.

extending flange adjacent one side thereof,

a glazing in said sash frame positioned against said flange, a resilient rubber gasket around the marginal edge of said glazing on the side opposite to said flange, a second glazing in said sash frame with its marginal edge positioned against said gasket in spaced relation to said first mentioned glazing, and means on said sash frame for holding both of said glazings against said gasket to form a dead air space, the sides of said gasket contacting said glazingsbeing concave in cross section to form a suction contact.

2. In combination; a sash frame; a glazing therein in air-sealing relation therewith and adiacent one side thereof; a removable resilient gasket contacting the inner side of said glazing adjacent its edge; a removable second glazing in the frame with one of its sides adjacent its edge contacting the gasket in spaced relation from the first-mentioned glazing, the opposite side of the sec0nd-mentioned glazing extending outwardly beyond the other side of the frame; clamping means engaging said opposite side of the secondmentioned glazing adjacent its edge; and screws extending through said means, transversely of the frame and threaded therein, 

